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A board of length 2.9 m is attached to a floor with a hinge at one end as shown

ID: 1286814 • Letter: A

Question

A board of length 2.9 m is attached to a floor with a hinge at one end as shown in the figure below. The board is initially at rest and makes an angle of 45 with the floor. If the board is then released, what is its angular acceleration? (answer in rad/sec^2)

A board of length 2.9 m is attached to a floor with a hinge at one end as shown in the figure below. The board is initially at rest and makes an angle of 45 with the floor. If the board is then released, what is its angular acceleration? (answer in rad/sec^2)

Explanation / Answer

angular acceleration = torque / moment of inertia:
? = ?/I

torque = force

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